Comment by FrontAid

Unfortunately, almost all of them are terrible for accessibility. Most of them cannot be focussed by keyboard. And even more do not have a focus styling. I did not check their code, but that alone does not make a good impression.

Please consider accessibility when you have the urge to build custom (form) components. For checkboxes, have a look at https://www.w3.org/WAI/ARIA/apg/patterns/checkbox/ for some guidelines.